Sears, Paul B. 1891-1990. Deserts on the march / [electronic resource] / Paul B. Sears.. — 4th ed.. — Norman : : University of Oklahoma Press,, c1980.. — viii, 264 p. : : ill. ; 22 cm.

Includes index.



ISBN: 0806116676 9780806116679

LCCN: 79006721

Subjects--Topical Terms:
Nature--Effect of human beings on--United States.
Desertification--United States.
Agricultural ecology--United States.
Conservation of natural resources--United States.

LC Class. No.: GF503 / .S42 1980 S493 / .S4 1980

Dewey Class. No.: 333.7/2/0973